Looks like Snapdeal is slow. I ordered a USB data card & an HDD on 3rd & 4th Feb. respectively. The estimated shipping date for both were given as 5th Feb. by Snapdeal.
However, as of now, none have been shipped. However, I did get a message yesterday evening stating that the products are ready with the seller and will be shipped within 48 hrs.
Lets see how they fare finally. As stated above, its my first deal with 'snapdeal'!
If they have confirmed that the item is ready with the seller, then you will get your item and should be shipped within 24 hours. The major concern was they took lot of time to confirm the item after ordering. Seems it is because of their lengthy process. When Snapdeal gets an order, they send some kind of notification to seller for that, seller checks notification, and makes sure if item is available, then updates to Snapdeal etc.